orthochoanite
/ˌɔːθəʊˈkəʊənʌɪt/Palaeontology. Now rare
noun
Usually in plural A nautiloid cephalopod having a straight, very short septal neck; (also) a member of the obsolete cephalopod suborder Orthochoanites, of which such necks were characteristic.
Origin
Early 20th century. From scientific Latin Orthochoanites, suborder name from ancient Greek ὀρθο- ortho- + χοάνη funnel + -ίτης -ite. Compare choanite.